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A novel nucleoprotein complex at a replication origin

AuthorsSerrano, Manuel; Salas, Margarita ; Hermoso, José Miguel
Issue Date25-May-1990
PublisherAmerican Association for the Advancement of Science
CitationScience 248(4958):1012-1016 (1990)
AbstractThe viral protein p6, required for the protein-primed initiation of replication of Bacillus subtilis phage phi 29, forms a nucleoprotein complex at the viral replication origins that shows novel features. Deoxyribonuclease I and hydroxyl radical footprinting data, as well as the induction of positive supercoiling, support a model in which a DNA right-handed superhelix tightly wraps around a multimeric p6 core. The interaction occurs through the DNA minor groove. The activity of p6 not only requires the formation of the complex but also its correct positioning, indicating that the other proteins involved in the initiation of replication recognize, at a precise position, either the p6 core or the DNA conformational change induced by p6.
DescriptionPMID: 2111580
Publisher version (URL)http://dx.doi.org/10.1126/science.2111580
Appears in Collections:(CBM) Artículos
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